Fumigating-tent and the process of using the same.



A. `W MORRLL. UMIGATING TENT AND TEE PROCESS OE' USING THE SAME, APPLIUATION FILED 19110.30, 1007.

AUSTIN W. M'ORRILL, OF ORLANDO, FLORIDA.

FMIGATING-TENT AND THE PROCESS OF USING THE SAME.

Specification of Letters Patent.

Patented Nov. 3, 1808.

Application filed December $0, 1907. Serial No. 408,670.

(DEDICATED T0 THEPUBLIC.)

To all whom it may concern.'

Be it known that l, AU'srinW. MoitniLL, a citizen of the United States, residing at Orlando, in the county of Orange and State of Florida, have invented certain new and useful vImprovements in Fumigating-'lents and tho Process of Using the Same; and I do hereby' declare the following to be a full, clear, and exact description of tite, invention, suoli as will enable others skilled in the art to lwhich it appertains to make and use the same.

This invention relates to improvements in i'umigating tents, and the process of using the same, and has for an object the provision -o'l' a tent arranged to indicate certain dimensions ot the space inclosed by means ot which the amount of' chemicals necessary for the iroper tuiiiiga-tion of the plant or tree iiicloscd by the tent can be estimated. I

.'lhis application is made under the act of March I5, 1883, cliaptel 143 (22 Stat., 625),

Vand the invention herein described and claimed may be used by the Government of the United States or any ot its oflicers or eniployees in the `rosecution ot work for the Government or 1by any person in the United' States, witaout payment to mo ol" any royaltythereon.- l Another' object in view is the provision o'lI a tent so marked that the handling thereof and changing from tree to tree ,is greatly facilitated by enabling the operators to distinguish readily the location of certain rings or places l'or attachment of ropes and -poles and to arrange the tent in a position con: venient lor handling.

A further object invicw is the provision of a process lor property l'umi'gating trees wherein the pro )er steps in thc process are. suggested or in( ica-ted by certain numerals on a telit used inconnection,with the process.

ln the accompanying drawings: Figure l' is a perspective View ol a tent arranged to '.indicatc the dimensions from which the.

amount ol" chemicals necessary to tuniigate the tree inclosed thereby can be. calculated. Fig-2 is a top plan view of Fig. 1.

ln"practiciiig my i'irocess i'or theI uinigay tion oll trees and determining the anio'unto'll .thecheniicals or gases necessary, 'it vis de.- signeu to uso a tent as i, shown in the accompanying drawings forming part of the., specification hereof.

The tent 1 may be made ol any desired size and shape, similar o those in geiieralusc for tree 'f-uiiiigat-ion.

The principal feature of this tent comprises lines in suitable locations passing across the tent from or near one margin to the opposite margin with a series of numbers 5, 6 and 7 placed thereon. at suitable intervals, for instance, one toot apart, for indicating the distance over the top ot the tent when in use. These lines may be of any desired number but most conveniently consisting ot tour as shown in Figs. 1 and L. 'lhree of these, 2, 3, and 4 are parallel and located at convenient intervals, l'or instance, 5*() or 26 inches, so thatL when the tent is not exactly centered over the tree the operators can select the line which in their judgiient is best suited for showing the approximate distance over the top ot the tent l'rom ground to ground. For aiding in thel easy recognition ot the three lines, the central line, 3, which passes as near as practicable through the center ol the tent, is much wider than the two lines, l and 4, running parallel thereto. The -fourth line, 8,

is at right angles to the three parallel lines, 2, 4

3, and 4, and crosses number 3 at a point which, as near as 'it is practicable tocalculate, is the center ol the tent when .it is spread llat. Each olI these lines is marked with a suitable scale indicating either the total distance across thc tent "l'rouifonc point marked with a certain number, as -lor yinstance40, to tlc corres iondiiig point on thc other side ot' thc tent w ietlier spread llat or covering a` tree in position loi* use., or the.

nun'iber Vmay indicate, one hall' ot this distance. In thc Vl'irst case the distance over the top otl the tent when in use is represented bythe average of thel two readings atthe ground. at opposite sides ot the tent on a given line.'

ln the second case the sum ot thc two `readings indicates this distance.

When it is desired to luinigate av tree the tentis placed over the tree'in the. customary, or any desired inaniror, with the edges ot' the tent permitted .to rest on the ground as shown ,in Fig. 1. The tent i's pulled. into sucha position tirata-atleast ono ot lthe lines passes so nearly over the center of the tree that it, is serviceable in obtaining this measurcn'ient over from the ground on Ione,l side to the ground on the other. 'tlaving selected athc line best adapted forusc in the case of 'the particular tree to be lumigatdd, readings are made, on opposite sides of the treo and theI distance ovm-.calculated in one or the other manner as indicated above. If'the 'tree is irregular in form a similar 'readingmay be made on a line running at right angles to the l quired amount of insecticide materials ascerfirst and passing approximately over the center of the tree. The average of the readings in the two directions will give this (liniension sufficiently close for practical iii-poses. The distance around the base of t ie tented tree is neXt obtained either by means of a tape or by one of the operators pacing and basing thereon an estimate of this measurement, Having thus obtained these two -ymeasurements the proper dose, or amount oi 2 lchemical oi insecticide matter, is found by reference to tables so arranged as to show the doses for tented trees with different ineasuie l i ments. Such tables are based on experience, or experimental tests with dii'erent insect pests, thus deterniining the inost satisfactory dose lor trees with different measurements when covered with the tent. 'llie following is an illustration ot the lorin o'l` such a table designed for use with an imagin'ary insect pest infesting trees which when covered with a tent ineasureii'oin 2() to 3() feet over the top from ground to ground, the

tained as before.

Vilhat I claim is: i

1. In a fumigator a tent formed with a line running across the same from one side to the other across the top when in position covering a tree, and an auxiliary line at right-angles to said `Iirst mentioned line, said lines being provided with indicating symbols for indicating` the distance from one side to the other over the top thereof.

2. In a liuinigator a tent formed with a'plurality of lines extending from one side to the other across the top oi the tent when in position covering the tree, a plurality of sets ol numerals at each end ol said lines lor indicating the dista-nce across the tent over the top thereof lroin one side to the other, and an 4 auxiliary lino running` at rightfanglos to said 'first mentioned lines, said auxiliary lines benin; provided with. a plurality ot indicating i symbols for indicating the distance across amount being given to the nearest halt" Ounce:

` i Circumferenee.

Instance over. l "t 2o :in :it i in `i5 so the tent frein one side to the other, over the top at rightfangles to the irst mentioned lines.

' 3. ln a fuinigatora tent formed with a plurality oli lines extending from one side tothe other across the top of the tent when in ositioii covering the tree, sets of' numera s at .each end of said lines for indicating;1 the distance across the tent over the top thereof frein one side to the other, and a line running at right-angles 'to said Iirst mentioned lilies,

said second mentioned line being provided with indicating symbols for indicating the distance across said tent from one side to the other, over the top at right-angles to the first mentioned lines.

ln testimony whereof I a'HiX my signature in presence ot two witnesses.

AUSTIN W. MORRILL. Vtlitnesses:

Roisnnr P. BRYnoN, W. W. Yofrnnns.- 

